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The ions O^(-2),F^(-),Mg^(2+) and Al^(3+...

The ions `O^(-2),F^(-),Mg^(2+) and Al^(3+)` are isoelectronic. Their ionic radii show

A

a significant increases from `O^(2-)` to `Al^(3+)`

B

a significant decreases from `O^(2-)` to `Al^(3+)`

C

an increases from `O^(2-)` to `F^(-)` and then decreases from `Na^(+)` to `Al^(3+)`

D

a decreases from `O^(2-)` to `F^(-)` and then increases from `Na^(+)` to `Al^(3+)`

Text Solution

Verified by Experts

The correct Answer is:
B
Among the isoelectronic ions, the ionic radius decreases with increases in nuclear charge.
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